Oil-press



(No Model.)

B. VAN WINKLE. OIL PREISS.

No. 485,780. Patented Sept. 2, 1890.

INVENTOH. EDWARD Vuv M HVKLE.

ATTORNEY.

UNITED STATES PATENT OFFICE.

EDXVARD VAN VINKLE, OF ATLANTA, GEORGIA.

OIL-PRESS.

SPECIFICATION forming part of Letters Patent No. 435,780, datedSeptember 2, 1890. Application filed May 8, 1890. Serial No. 351.073-(No model.)

.To all whom it may concern.-

Be it known that I, EDWARD VAN WINKLE, a citizen of the United States,and a resident of Atlanta, in the county of Fulton, State of Georgia,have invented certain new and useful Improvements in Oil-Presses; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawin gs, and to letters of reference markedthereon,which form a part of specification.

This invention relates to presses for expressing the oil fromcotton-seeds and other substances, the object being to so improve thedivision-plates and boxes thereof as to prevent, as far as possible, anystraining or tearing of the press-cloth bag, and also to provide for theeasy and perfect outflow of oil from the cake under pressure, to providefor the easy removal of the cake, and to obviate the rapid deteriorationof the division-plates, as heretofore experienced.

The details whereby these objects are obtained are hereinafter fullyspecified, and the parts claimed as new pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective View of thedevice, showing the dies in place on one of the division-plates, andalso showing the construction of said plate. Fig. 2 is a plan showingthe parts shown in Fig. 1, and also the upwardly-projecting flangearound the outer edge thereof and the oil-duct leading therefrom. Fig. 3is a sectional view of one of the division-plates, further showing theconformation of the same and the die in longitudinal section, and alsothe close-grained metallic lining. Fig. 4 is an end elevation of a box,showing the die just entering. Fig. 5 is a section of the division-platewith its lining in longitudinal vertical section, showing thereon two ofthe dies in cross-section. Fig. 6 is a detail View fully showing theformation of the downwardly-projecting flange of the division-plateintegrally with the web thereof, showing incidentally a portion of oneof the dies and of the lining and the upwardly-proj ecting flange aroundthe outer edge thereof.

In the figures like reference-marks indicate corresponding parts in theseveral views.

The division-plate A, as far as relates to the web a and thedownwardly-projecting flanges a, is made integrally-that is, the flangesand the web are rolled in one piece-by reason of which construction thestrength ening-fillet a (see Fig. 0,) which also assists in forming thecake, may be made in said plate A, which adds great strength at thatpoint, which would otherwise, as is found to be the case in plates asheretofore constructed, be weak at that point and unable to resist for areasonable length of time the side thrust of the material underpressure. This fillet a also assists in facilitating the removal of thecake after pressure by making the vertical edges thin and reducing thefriction thereof to a minimum. I

To save the expense of planing or otherwise finishing the interior sideof the web a, a plate B, of smooth metal such as, for instance, rolledsheet brass-is secured thereto, as best shown in Figs. 5 and 6, brassbeing the preferred metal, inasmuch as it is most easily affixed andoifers the least possible resistance to the withdrawal of the bagcontaining the meal which has been subjected to pressure, which willsave the bag to a great extent from wear. The fillet (t cannot beinserted to be operative unless the web and flanges are made integrally.

Suitably secured and parallel to each other on the top side of the plateA, as best shown in Fig. l, are a number of dies 0, which form thebottom of the box and in pressing enter between thedownwardly-projecting flanges a, which form the sides of the box, thewebA forming the upper part thereof. These dies 0 are larger on theirupper face than at any other point, their sides and ends taperingsmaller downwardly, the reason of which will be presently seen. \Vhenassembled and secured to the top of the plate A, as shown in Fig. 1,they have between them a small space 0. (Best shown in Fig. 5.) Thisspace is to allow for the escape of oil from the bag and should be aslarge as possible consistent with not straining the bag under pressurewhere it bridges the said openings. Owing to the inclination of thesides of each of these bars, the opening between them is very muchlarger at their bottoms, which provides for the free escape of the oiland prevents any clogging of the said openings and the adhesion of oilto the sides of the dies.

I11 order that these dies may fit between the flanges a suflicientlywell to prevent the cloth bag from being broken over the top cornersthereof or forced into the crack, the length of these dies is equalapproximately to the distance between the flanges a, and in order thatthere shall be no unnecessary frictional surface in case said endsshould contact with said flanges the ends are beveled, as best shown inFig. 6.

In order that the strain lengthwise of the bag, caused by the movementin that direction of the material contained therein, shall be equablethroughout its entire length and not on any particular portion thereof,the upper side of the said dies are corrugated in a peculiar and novelmanner. Each corrugation, or, more properly speaking, each indentation,is formed, as best shown in Fig. 5, of inclined sides, one short sideand one long side, the short side 6 standing at nearly a right angle tothe long side 6 and facing from either of the series of dies toward thecenter of said series and the long side inclining" downwardly in theopposite direction, thereby forming a shallow depression, the short sideof which will resist the extension of the bag as soon as sufficientpressure is exerted thereon by the press to cause the material to pressthe said bag into the depression 0 and will also prevent the material inactual contact with the bag from passing toward its ends.

As ordinarily constructed, corrugations or slots in the face of the dieshave been necessarily made so deep that the bag is strained by beingpressed into them, which depth has been necessary for the reason thatotherwise said corrugations as heretofore used would be inadequate tothe functions required of them.

If desired, the outer edges of extreme end dies of the series may beraised above the general level of the tops of the dies to preventoverflow of the oil at the ends.

A flange D is supplied, as shown in Fig. around the outer edge of theplate A, having a gap d therein for the purpose of directing the oilexpressed to one outlet 01'.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is

1. The combination of the plate A and the dies 6, seated on said plate,said dies having a corrugated upper surface and inwardly-inclined sides,which, when two of said dies are placed in their proper relativepositions, form a space tapering from the bottom, substantially as andfor the purpose specified.

2. In an oil-press, the combination of the plate A, provided with theflange D around its edge, the dies 0, seated on said plate, each ofwhich having a corrugated upper surface, each indentation having a shortside 6 nearly perpendicular to the horizontal plane of the dies, and along side e nearly perpendicular to the short side e, and the said diesbeing so placed on the plate A that the general slope of the long sidesof the indentations will be outward, substantially as and for thepurpose specified.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

EDVARD VAN W'INKLE.

\Vitnesses:

A. P. W001), S. M. Woon.

